Steam generator



E. E. WEED STEAM GENERATOR May 4, 1948.

Filed Nov. 19, 1937 5 Sheets-Sheet 1 I lnpenior fdwardzl Weed Attorneys E. E. WEED STEAM GENERATOR May 4, 1948;

Filed Nov. 19, 1937 3 Sheets-Sheet 2 Inventor Edward I. Wed

Attorneys i May 4, 8. E. E. WEED STEAM GENERATOR Filed Nov. 19, 1937 3 Sheets-Sheet 5 Inventor fldzuardE'oflvd a A iiorneys Patented May 4, 1948 UNITED STATES (1 PF ICE STEAM ERAI E Edward- E2 Weed; East PortQhester, Conn,

Ann icatiqnNovembeig 19, 1937, Serial No. 175,520

Section 3, Public Law 699; August '8; 1946" Patent expires November 19s 1957 claims-v (01.1.2.2:151)

provide a steam generator whereinboth-the feed water and fuel'linesare cut off" at a predetermined steam pressure.

Anotherimportant object of the invention is to-provide a generator'of the character stated wherein the feed Water is automatically turned on after the coilhas been preheated;

These and'various other importantobiects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a side elevational view of the apparatus.

Fi u e. .2. i a o pl n; iew showing the. coi case in section.

Figure 3 is a fragmentary vertical sectional view through the water line control valve.

Figure l is a vertical sectional view through eneiofthe .valves.

Figure 5 is a fragmentary detailed sectional view through the lower portion of the thermostatic unit.

Figure 6 represents perspective views of the water and gas control rods.

Referring to the drawings wherein like numerals designate like parts, it can be seen in Figure 1 that numeral 5 represents a case in which the boiler or generator coil 6 is located.

Under the coil is the burner I of the usual liquid fuel type and adjacent this is the pilot 8 having the supply line 9 Numeral I0 denotes the fuel supply pipe line, while numeral ll denotes the water pipe supply line. In the line H! is the valve generally referred to by numeral [2, while in the line H is the valve generally referred to by numeral l3. These valves are automatic valves and close at a predetermined pressure in the coil 6.

Each of the lines lfl-l I has a manual valve therein and these manual valves are generally referred to by numerals |4--| 5, respectively. Each of the valves l4-l5 is provided with a control stem having an arm at its upper end and these arms are denoted by numerals [6-41 respe'ctively.

Numeral I 8 denotes an elongated control rod on which an eye member IQ of a rod 20 is slid- 2:: able. On the rod w is a coiled compressible spring- 21 interposedbetween the eye l9 and-the anchoring-V member 22;

As canbeseen 7 in Figural, a case. 23pis pro: videdon the sideofthe coil 6. and this, has. athermostatic element, 24. therein controlling-a catch rod 2 5: member 26 which. is engageable with av notch 21: in therod l8.

As. can'be seen-in Figure 2, the rod If! in one to the left-in Figure z, the spring 2| is placedunder pressure, whilethe fuel valve It is opened, so that the burner TiiS set; in operation.

When the coil is has become sufficientlyheated,

the thermostat 2Q willrelease the rod [use that the spring 2! will operate the rod. [8. to open the valve l5;

A branch pipe 30: is tappedfrom theupper portion ofsthe coillfiand opens into both the valves Ill-i3 located in the pipe lines; Hallie As is clearly. shown in Figure. 3; each of these valves l2-I3 consists of a shell 3! having a plug 32 in one end thereof and being screw'connected as at 33 to the T-fitting 34. One side of the water line as shown in Figure 3 is connected to the nipple 35 while the other side is connected to the portion 36 of the T-fitting 34 and also extending from this fitting 34 is the tube 31. This tube 31 is a small tube in circumference compared with the pipe II and has a small orifice 38 at its end adjacent the coil 5. In this manner, water from the water line is supplied directly to the coil area from the valve I3.

The valve l3 has a valve seat 39 and the valve element 40 operative thereon. This valve element 40 has the stem 4| connected at its upper This catch rod 25' operates a sive to temperature variations in the generator;

a .lever for opening the valve of the line to the burner settable to opening position, and means conditioned by such setting ofsaid lever for sub-' sequent operation under control of said device to open the other valve.

2. Control mechanism for a steam-generator having a boiler, a burner, and a pair of supply lines to said boiler and burner, respectively, said v mechanism comprising a pair of valves in said lines, respectively, a thermostatic device responsive to temperature variations in the generator, a lever for opening the valve of the line to the burner settable to opening position, and means conditioned by such setting of said lever for subsequent operation under control of said device to open the other valve, said means comprising a member movable to open said other valve, devices on said member and thermostatic device, respectively, normally coacting to releasably lock said member against movement, a spring adapted for compression to move said member, and means operative by setting of the lever to compress said spring.

3. Control mechanism for a steam generator having a boiler, a burner, and a pair of supply lines to said boiler and burner, respectively, said mechanism comprising a pair of valves in said lines, respectively, a thermostatic device responsive to the temperature variations in the generator, a lever for opening the valve of the line to the burner settable to opening position, means conditioned by such setting of said lever for subsequent operation under control of said device to open the other valve, and means for closing both of said lines under a predetermined steam pressure in said boiler.

4..Contro1 mechanism for a steam generator having a boiler, a burner, and a pair of supply lines to said boiler and burner, respectively, said mechanism comprising a pair of valves in said lines, respectively, a thermostatic device responsive to temperature variations in the generator, a lever for opening the valve of the line to the burner settable to opening position, and means conditioned by such setting of said lever for subsequent operation under control of said device to open the other valve, said means comprising a rod endwise movable to open said other valve, a member adapted to interlock with said rod to prevent such movement thereof and operative by 7 said thermostatic device to break said interlock,

a spring adapted for compression to move said rod, and means operative by setting of said lever to compress said spring,

5. Control mechanism for a steam generator having a boiler, a burner, and a pair of supply lines to said boiler and burner, respectively, said mechanism comprising a pair of valves in said lines, respectively, a thermostatic device responsive to temperature variations in the generator, a lever for opening the valve of the line to the burner settable to opening position, and meansspring sleeved on said rod for compression to,

move the same, andmeans operative by setting of said lever to compress said spring including a second rod connected at one end to said lever and having the other end thereof slidably connected to the first-mentioned rod.

EDWARD E. WEED.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date Smith Oct. 22, 1935 

